Microsoft Releases January 2025 Patches
Microsoft has released software updates as part of its January 2025 Patch Tuesday. The updates fix 159 security vulnerabilities in total, including 8 zero-day vulnerabilities, 3 of which is being actively exploited.
The breakdown of the vulnerabilities are as follows:
40 privilege escalation
14 security feature bypass
58 remote code execution
24 information disclosure
20 denial of service
5 spoofing
The actively exploited vulnerabilities are as follows:
CVE-2025-21333, CVE-2025-21334 and CVE-2025-21335 - vulnerability in Windows Hyper-V NT Kernel Integration VSP that can lead to elevation of privilege
Why You Should Care?
Zero-day vulnerabilities are vulnerabilities where a flaw has been identified but there was no fix for the flaw, which means attackers will try to exploit as many targets as possible before users fix the vulnerability. This makes it extra dangerous, and needs to be addressed as soon as possible.
In this case, the zero-day vulnerabilities are already being exploited, which means it is only a matter of time before the attackers compromise your business. Now that patches are available, it is critical to apply the patches as soon as possible to avoid getting compromised.
What Should You Do?
Test the patches ASAP at your organization, and make sure it does not break any business applications
Prioritize patching against the 3 actively exploited zero-days
Roll out the rest of the Patch Tuesday updates
References
https://www.bleepingcomputer.com/news/microsoft/microsoft-january-2025-patch-tuesday-fixes-8-zero-days-159-flaws/